Digital flow meter



FIG. 1 is a front elevational view of a digital flow meter showing my new design;

FIG. 2 is a front elevational view thereof, the rear being a mirror image thereto;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a bottom plan view thereof.

The broken line showings of a threaded fittings in FIGS. 1-2 and 4 are environmental only and form no part of the claimed design. 

The ornamental design for a digital flow meter, as shown and described. 